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Table 9 Estimates of fatty acid concentrations (μg/ml) in Caucasian and Asian females using hormonal contraceptives

From: Ethnicity, sex, FADS genetic variation, and hormonal contraceptive use influence delta-5- and delta-6-desaturase indices and plasma docosahexaenoic acid concentration in young Canadian adults: a cross-sectional study

Fatty acid Caucasian females East Asian females
non (n = 161) HC (n = 137) p-value non (n = 234) HC (n = 43) p-value
  μg/ml SD μg/ml SD   μg/ml SD μg/ml SD  
18:2n6 616.5 138.1 671.1 139.0 <0.01 664.0 140.6 698.0 128.1 <0.05*
18:3n3 14.0 7.3 16.6 6.3 <0.01* 15.3 6.1 17.8 7.7 0.05
20:4n6 115.9 34.1 140.7 36.6 <0.01* 112.4 30.4 123.1 31.6 <0.01*
20:5n3 12.0 8.7 11.3 7.5 0.42 12.6 9.6 14.0 11.3 0.45
22:6n3 27.7 12.1 35.4 11.7 <0.01* 34.8 11.5 37.5 14.7 0.23
[AA/LA] 0.190 0.004 0.213 0.005 <0.01* 0.176 0.005 0.179 0.007 0.81
[DHA/ALA] 2.3 1.1 2.4 1.0 0.42 2.5 1.1 2.4 1.1 0.38
[EPA/ALA] 0.944 0.055 0.741 0.049 <0.01* 0.910 0.052 0.890 0.119 0.89
[DHA/EPA] 2.8 1.2 3.8 1.6 <0.01* 3.6 1.5 4.1 2.6 0.06
  1. Select fatty acids used as substrate and product of D5D and D6D desaturase indices. The * denotes p-values which are significant. P-values were determined using multiple linear regression models which were adjusted for BMI, age, dietary LA, ALA, EPA and DHA, % total energy from dietary fat and physical activity. Caucasian females: n = 298; East Asian Females: n = 277. Abbreviation: SD standard deviation.